• 한국전자파학회논문지
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• 제22권8호
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• pp.768-775
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• 2011

대용량 데이터 전송을 위한 무선 통신 시스템에서는 높은 신뢰도를 보장하는 오류 보상 기법이 요구되며, 그러한 기법 중 하나로 재전송 방식과 터보 부호를 결합한 터보 HARQ(Hybrid Automatic Repeat Request) 기법이 여러 문헌에서 연구되어 오고 있다. 기존 터보 HARQ 기법의 경우, 수신 데이터의 일부분이 오류 정정 가능함에도 불구하고 NAK 신호 발생 시에 송신단에서는 정해진 정보 패킷 전체를 반복 전송하게 된다. 이와 같은 과정에서 재전송이 요구되는 정보 패킷 중 필요한 일부만을 송신할 경우 시스템의 전송 효율을 높일 수 있다. 본 논문에서는 전송 효율을 높이기 위한 방법으로 사후 정보 값의 부호 변화를 이용한 오류 데이터 판단 기준 및 부분 재전송 방식을 이용한 터보 HARQ 기법을 제안한다. 제안된 기법에 대한 모의 실험을 통해 전송 효율을 도출하고 성능을 분석한다.

• Safety and Health at Work
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• 제10권4호
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• pp.420-427
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• 2019

Introduction: To prevent and manage the societal and economic burden of occupational diseases (ODs), countries should develop strong prevention policies, health surveillance and registry systems. This study aims to contribute to the improvement of OD surveillance at national level as well as to identify priority actions in Turkey. Methods: The history and current status of occupational health studies were considered from the perspective of OD surveillance. Interpretative research was done through literature review on occupational health at national, regional and international level. Analyses were focused on countries' experiences in policy development and practice, roles and responsibilities of institutions, multidisciplinary and intersectoral collaboration. OD surveillance models of Turkey, Belgium and the Netherlands were examined through exchange visits. Face-to-face interviews were conducted to explore the peculiarities of legislative and institutional structures, the best and worst practices, and approach principles. Results: Some countries are more focused on exploring OD trends through effective and cost-efficient researches, with particular attention to new and emerging ODs. Other countries try to reach every single case of OD for compensation and rehabilitation. Each practice has advantages and shortcomings, but they are not mutually exclusive, and thus an effective combination is possible. Conclusion: Effective surveillance and registry approaches play a key role in the prevention of ODs. A well-designed system enables monitoring and assessment of OD prevalence and trends, and adoption of preventive measures while improving the effectiveness of redressing and compensation. A robust surveillance does not only provide protection of workers' health but also advances prevention of economic losses.

• 한국콘텐츠학회논문지
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• 제16권5호
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• pp.440-448
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• 2016

본 연구에서는 우선 예술인복지법의 쟁점과 한계를 분석하였다. 그것은 예술인 근로성 및 지위의 문제이고, 사회보험 가입절차의 문제 등이다. 본 연구에서는 기존 자료를 수집하여 정리, 분석, 평가하는 문헌연구 방법을 사용하였다. 연극예술인의 사회보험 활성화를 위한 정책적 해결방안은 다음과 같다. 우선, 사회보험법상 예술인 지위의 특례를 적용하는 것이다. 그리고 사회보험가입 절차는 고용노동부를 통한 우선 가입 후 문화체육관광부의 사후 심사 방식으로 변경하도록 한다. 한편 극장 임대인이 극단에 극장을 임대해줄 시에 기존의 산업재해보상보험법 가입을 의무화 하도록 한다. 새로운 보험 수식 제안으로는, 예술인 근로의 특수성을 감안한 새로운 고용보험수식과 산업재해보상 보험료 산출 공식이 있다. 끝으로 제작준비기간 및 부업을 인정해주는 특례방식을 도입이 필요하다.

• 대한기계학회논문집B
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• 제34권12호
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• pp.1079-1085
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• 2010

평판형 증발부를 갖는 루프히트파이프(LHP)에 대한 정상상태 해석모델을 제시하였다. 관련문헌의 고찰에 기초하여 LHP 의 주요 부분인 증발부, 액체저장조(보상챔버), 증기이송관, 액체이송관 및 응축부에서 온도와 압력을 예측할 수 있도록 계산과정을 제시하였으며, LHP 에서 유일하게 모세관 구조물을 가지는 증발부의 해석에 중점을 두었다. 증발부에서 액체 -기체 경계면 부근에서 압력과 온도의 영향을 고려하기 위해 박막이론을 사용하였으며, 수정된 기체분자운동이론에서 응축경계면 온도를 산정하는데 있어서 독특한 방법을 도입하였다. 응축부에서는 상변화 경계면을 단순화하여 처리함으로써 응축부 형상 변화에 상대적인 융통성을 구비하도록 하였다. 본 연구의 LHP 정상상태 해석 모델은 문헌 상의 실험결과에 의해 타당성이 증명되었다. 해석모델에 의한 예측치는 실험치와 비교할 때 절대온도를 기준으로 최대 상대오차 3% 이내로서 합리적으로 잘 일치하였다.

• 한국한의학연구원논문집
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• 제18권3호
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• pp.39-48
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• 2012

This study aims to examine the life of Chugang Nam Hyo-On (1454~1492) from his Chinese poem and to figure out how he overcame and healed his agony and wound. Nam Hyo-On was one of the Saengyuksin who submitted Sureungbokuiso and spent his whole life with alcohol and wandering. Thus, he is known to be a hermit writer or stranger. He had to suffer poverty during his life thanks to his only one choice. He was weak by nature but also feeble mentally as he always worried about death. In his 30s, he regarded himself as an aged man and always worried about death due to his frequent illness. Sometimes, he used to dream of being forever young. He composed self-elegy poem that is about his death, which is the ever first self-elegy poem in our history. He sent it in his letter to his master Kim Jong Jik (1431-1492) in 1489. His agony and motivation of writing such poem can be conjectured from his master's reply and his self-elegy poem. Nam Hyo-On tried to overcome and heal his real discontent and wound from his literary works. And it seems appropriate to regard him that he attempted to get compensation of his limitation and discontent from literature. We sometimes heal our wound by writings (or literature) and by reflecting through such writings. Nam Hyo-On reminded of his beloved person through his poet writing and healed his fear of wound of death.

• 공학교육연구
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• 제27권2호
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• pp.3-12
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• 2024

The purpose of this study was to evaluate how well the 2020 vision presented by the Accreditation Board for Engineering Education of Korea(ABEEK) had been achieved, and to objectively examine the social status. It was very necessary for the development of engineering education in Korea to provide room for improvement by diagnosing how well the ABEEK, one of the major engineering education communities, was achieving its own vision. In order to achieve the objectives of the study, research methods such as literature review, survey research, and expert advisory committee were used. To evaluate the level of achievement of the Vision 2020 of the ABEEK, the analysis was based on the response results of 61 people who had experience as a member of the steering committe. In addition, the vision and mission of the 23 countries that are currently signatory members of the Washington Accord were surveyed, and the social responsibility and financial independence of the 20 countries that joined the signatory member countries before 2020 were compared with each other. As a result of the analysis, the item of securing international equivalence in engineering education received the most positive evaluation, and the social compensation efforts for accreditied graduates received the least evaluation. The ABEEK was evaluated as having a medium level of social responsibility and a low level of financial independence. Based on the results of this research, we proposed ways the ABEEK to contribute to the improvement of Korean engineering education.

• 생물정신의학
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• 제20권3호
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• pp.66-73
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• 2013

Sexual behavior is crucial in life, yet comparatively little is known about the mechanisms in the sexual response in humans. A lot of theories and models have been developed to explain about the process of the sexual response in humans. The first model of sexual function was described by Masters and Johnson, defined the four-phase model (phases of excitation, plateau, orgasm and resolution). Helen Kaplan proposed a slightly different model of human sexual response by adding the conception of the desire phase. Some years later, a new model of circular sexual response pattern was described by Whipple and Brash-McGreer, who acknowledged the cyclic nature of women's sexual response. Basson presented an alternative model of women's normative sexual function, which featured a responsive form of desire in women's sexual response. Bancroft developed a new theoretical model, the Dual Control Model, which postulates sexual response and arousal is ultimately determined by the balance between the sexual activation or excitation system and the sexual inhibition system. The Sexual Tipping Point is a model created by Perelman, suggesting that a sexual response is determined by a balance between excitatory or inhibitory factors that may be psychological, organic, psychosocial, or cultural. A comprehensive understanding of sexual response and function is of paramount importance for the psychiatrist to study sex, offer counseling to the patient on sex, and practice sex therapy. In this literature, models of sexual response would be reviewed to understand the knowledge of the sexual functioning in humans.

• Asian Journal of Business Environment
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• 제10권1호
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• pp.45-50
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• 2020

Purpose: This paper examines the theoretical grounds for the disclosure of the Korea Fair Trade Commission. Three central measures of the disclosure are scrutinized: The interconnected status of affiliate companies, the important matters of private affiliates, and the large internal transactions. Contemplating on three measures, respectively, we review the rationale and derive policy implications. Research design, data, and methodology: Collecting the data of violation rates and remedial measures, we analyze the intensity of the disclosure enforcement. These statistics are critically reviewed by the economic literature of mandatory disclosure. Results: Statistics evince that the Korea Fair Trade Commission has enforced the regulatory disclosure quite successfully. Violation rates of the disclosure has declined from the outset. It demonstrates that the Korea Fair Trade Commission has enforced those measures satisfactorily for about a decade. But we cannot ascertain empirically whether the regulatory disclosures are socially and economically beneficial. To evaluate the effect of the regulatory disclosures precisely, we need a further empirical investigation. Conclusions: Despite the lack of policy evaluation, this study suggests complementary measures for current disclosures. First, disclosure of executive compensation in privately held subsidiaries must be introduced. Second, the controlling shareholder/manager should be responsible for information disclosure on foreign subsidiaries.

• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.355-361
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• 2015

Background: Deletion types of genetic variants of glutathione S-transferase (GST) M1 and T1, the GSTM1 null and GSTT1 null which are risk factors for certain cancers, have been ubiquitously found in human populations but their worldwide distribution pattern is unclear. Materials and Methods: To perform a meta-analysis, a systematic search for the literature on GSTM1 and GSTT1 null genotypes was done to identify 63 reports for 81 human populations. Relationships between the GSTM1 and GSTT1 null genotype frequencies and the absolute latitude of 81 populations were tested by Spearman's rank correlation coefficient. Results: A significant positive correlation was detected between the GSTM1 null genotype frequency and the absolute latitude (r=0.28, p-value <0.05), whereas the GSTT1 null genotype frequency and absolute latitude showed a significant negative correlation (r= -0.41 p-value <0.01). There was no correlation between the frequencies of GSTM1 and GSTT1 null genotype in each population (r= -0.029, p-value=0.80). Conclusions: Latitudinal clines of the distribution of the GSTM1 and GSTT1 null genotypes may be attributed to the result of gene-environmental adaptation. No functional compensation between GSTM1 and GSTT1 was suggested by the lack of correlation between the null frequencies for GSTM1 and GSTT1.

• 한국시스템다이내믹스연구
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• 제15권3호
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• pp.61-79
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• 2014

This paper deals with system thinking in the resilience of the SES (Social-Ecological Systems) around Mt. Gariwang, located in Jeongseon County, Gangwon Province, in particular with the disturbance that a new ski slope is planned to be built for the PyeongChang 2018 Winter Olympic. It first performs a literature survey and newspaper article search to summarize the controversy with regards to credible environmental and socio-economical impacts of the plan, and then elaborates a series of CLDs (Causal Loop Diagrams) to infer the dynamics of the impacts. The results imply that the natural restoration seems to be hard because the development activities can cause a great deal of damage to the ecosystem mainly due to soil degradation and the mitigation of icy valley effects with water exploitation for making artificial snow and so on. Moreover most of the households near the planned site seem to leave with land compensation, thus more policy efforts are needed to enhance the resilience of the ecosystem and the nearby society based on ecotourism.